This Magnum Caliber extractor is an original Winchester part, with factory Carbonia Bluing. The Carbonia finish was phased out in 1939, meaning this part came on a rifle manufactured between 1936 and 1939. This part is in very good condition. It is stamped on the backside with an "M".
Extractor pricing is based on condition.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE